/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.iteration.operator.allround;

/** Utilities to track the life-cycle of the operators. */
public enum LifeCycle {
    SETUP,
    OPEN,
    INITIALIZE_STATE,
    PROCESS_ELEMENT,
    PROCESS_ELEMENT_1,
    PROCESS_ELEMENT_2,
    PREPARE_SNAPSHOT_PRE_BARRIER,
    SNAPSHOT_STATE,
    NOTIFY_CHECKPOINT_COMPLETE,
    NOTIFY_CHECKPOINT_ABORT,
    EPOCH_WATERMARK_INCREMENTED,
    ITERATION_TERMINATION,
    END_INPUT,
    MAX_WATERMARK,
    FINISH,
    CLOSE,
}
